Designing organization: Institute of precise mechanics and computer engineering (ITMiVT) of the USSR Academy of Science.

Completion of development: 1961. Testing of a 12-computer system: 1967.

Description: One of the first fully semiconductor-based machines implemented as a dual-processor system with common RAM extent and full hardware control. It allows creating multicomputer systems with common extent of external memory devices. Automatic redundancy of machines in the system is possible. The computer uses a sophisticated interrupt system with hardware and software priority and supports interaction with remote objects through full duplex telephone and telegraph channels.